Running the OpenCPN Flatpak beta requires a working Flatpak installation. See https://flatpak.org/setup/ for platform-specific installation procedures.

Running the beta is done from the command line. It is installed using

$ flatpak install flatpak install https://flathub.org/beta-repo/appstream/org.opencpn.OpenCPN.flatpakref

Once installed, the beta version will be the default alternative and the one started when clicking on the OpenCPN desktop icon. However, if a earlier version was installed before the beta it is still available and can be started using

$ flatpak run org.opencpn.OpenCPN/stable

To start the beta from the command line:

$ flatpak run org.opencpn.OpenCPNbeta

To update the beta to latest version:

$ flatpak update org.opencpn.OpenCPN/beta